Side by side
Seiko Prospex SeavsOak & Oscar The Humboldt GMT Titanium
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Prospex Sea42mm
The Humboldt GMT Titanium39.5mm
Power Reserve
Prospex Sea72h
The Humboldt GMT Titanium56 hoursh
Water Resistance
Prospex Sea300m
The Humboldt GMT Titanium200m
MSRP
Prospex Sea—
The Humboldt GMT Titanium$2,950
Full specifications
Case
7 specsCategory
Diver
GMT
Diameter
42mm
39.5mm
Thickness
13.3mm
12.5mm
Lug-to-Lug
48.6mm
46.8mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
Double-domed
AR Coating
Anti-reflective coating on inner surface
Underside
Dial Color
Black
Green
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova
Movement
4 specsCaliber
6R54
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
72h
56 hoursh
Jewels
24
25
Pricing
1 specsMSRP
—
$2,950
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